Daniel Fernau

254 posts

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Daniel Fernau

Daniel Fernau

@danielfernau

I make electrons question their life choices, one byte at a time. Views expressed are my own.

~8 kpc from galactic center Katılım Kasım 2012
549 Takip Edilen119 Takipçiler
Daniel Fernau
Daniel Fernau@danielfernau·
@mikepat711 WD-40 works, but only temporarily. A better option is a Tub O' Towels wipe for the initial cleaning, followed by some 303 Aerospace every now and then. This combo is also less aggressive on the window sealant and rubber parts around the trim.
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Mike P
Mike P@mikepat711·
I’ve posted this in the past, but I see so many Tesla’s all janked up from soap scum, so I’m posting it again. This is how you fix it. WD-40 + tiny spray on cloth. Takes 30 secs.
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Daniel Fernau
Daniel Fernau@danielfernau·
@bilalsattar Very cool! Our current solution involves a Shelly energy meter, Home Assistant, and an automation against the Tesla API. It's just slightly faster than the slow-blow ceramic fuses in our panel, so I'm kinda curious to see what the real-world reaction times of this thing are...
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Bilal Sattar
Bilal Sattar@bilalsattar·
Tesla released a pretty cool product called the Remote Meter. It enables "Dynamic Power Management" It lets your Wall Connector automatically slow down or speed up charging depending on what else is running in your house. Super useful if your electrical panel is limited or you don’t want to pay for a big upgrade. This opens home charging to a lot more owners who thought it wasn’t possible. Tesla’s documentation gives a perfect example: “When your home is using more power—for example, when you have a dryer and a water heater running—your vehicle will charge more slowly. But when your home is using less power—for example, at night—your vehicle will charge more quickly.” Pretty clever device.
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Daniel Fernau
Daniel Fernau@danielfernau·
From a network engineering perspective, a portal these days is just plain unnecessary. Both on a technical as well as operational level. Issue a PPSK to every passenger who paid for access, print it on the ticket or whatever, and invalidate it after landing. The frequent flyer number (if any) is already associated with the ticket. Content filtering is out the window the second a VPN is used, and depending on the protocol used, there's no blocking that anyways. Logging the identity or MAC address of devices is useless these days for the most part due to them dynamically changing for every connection/network. Accepting ToS can be part of the ticket. Speed limits per client can be enforced via traffic shaping on a packet level. And nobody can tell me that there isn't already enough advertisement space available on the screen right in front of everyone's face to interact with. Put QR codes on the on-screen ads for mobile users to scan, and done. The Delta situation shows yet again what happens when people without the necessary understanding of things end up with decision-making powers.
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Elon Musk
Elon Musk@elonmusk·
Not exactly. SpaceX requires that there be no annoying “portal” to use Starlink. Starlink WiFi must just work effortlessly every time, as though you were at home. Delta wanted to make it painful, difficult and expensive for their customers. Hard to see how that is a winning strategy.
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Sawyer Merritt
Sawyer Merritt@SawyerMerritt·
Delta rejected adopting SpaceX's @Starlink on its fleet because it wanted to provide internet connectivity to passengers via the Delta Sync portal, instead of the Starlink-branded portal. Delta has since chosen to partner with Amazon's LEO. This will result in Delta falling behind many of its competitors in offering high-speed WiFi onboard, as many other carriers are already offering or installing Starlink, whereas Amazon's LEO airplane WiFi for Delta is still a couple year away (or more). Satellites currently in orbit: • SpaceX's Starlink: 10,400 • Amazon's LEO: 300 (Delta rejection info according to Ron Baron)
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Tesla Manufacturing
Tesla Manufacturing@gigafactories·
750,000 cars built at Giga Berlin. Here’s what it takes.
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Daniel Fernau
Daniel Fernau@danielfernau·
@Tesla Eleven years ago in March, a test drive of a Model S P85D started it all for me. It was an unforgettable experience with technology years ahead of any other manufacturer back then and still today. Sad to see the S and X being phased out, but excited for what's next!
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Tesla
Tesla@Tesla·
The last Model S & the last Model X have been produced at Fremont Factory 14 years of history for Model S, 11 years for Model X 🫡
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Elon Musk
Elon Musk@elonmusk·
The human-perceived RGB is image 1 and the Tesla AI photon count reconstruction is image 2. This is why Tesla FSD can see so well at night or through extreme glare.
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Sawyer Merritt
Sawyer Merritt@SawyerMerritt·
Tesla has redesigned its website, putting the live FSD (Supervised) mile counter directly on the homepage with FSD videos from Tesla owners.
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Tesla North America
Tesla North America@tesla_na·
Model Y is the first vehicle to pass NHTSA’s new ‘Advanced Driver Assistance System’ tests “By successfully passing these new tests, the 2026 Tesla Model Y demonstrates the lifesaving potential of driver assistance technologies and sets a high bar for the industry.”  – NHTSA Administrator Jonathan Morrison nhtsa.gov/press-releases…
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Sawyer Merritt
Sawyer Merritt@SawyerMerritt·
Fleet of Cybertrucks escorting Starship V3.
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Tesla Manufacturing
Tesla Manufacturing@gigafactories·
Celebrating Earth Day at Giga Berlin
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Daniel Fernau
Daniel Fernau@danielfernau·
Great summary worth reading. LiDAR definitely has its place, especially in controlled environments requiring high precision. But for cars moving through very dynamic and unpredictable surroundings, vision is far more capable than any crazy combination of other types of sensors.
Brivael Le Pogam@brivael

Aujourd'hui grosse discussion avec mes ingés (chez Argil) sur pourquoi Elon a viré le LIDAR de ses voitures autonomes. Choix radical, moqué pendant des années, et comme d'hab il avait raison depuis le début. Le LIDAR c'est un laser qui balaye l'environnement et crache un nuage de points 3D. Sur le papier tu obtiens la géométrie exacte du monde. Dans la vraie vie c'est une verrue technologique collée sur le toit parce qu'on sait pas faire mieux avec la vision seule. Problème numéro un : ça rajoute une modalité dans le training du modèle. Ton réseau doit apprendre à fusionner vision + lidar + radar + ultrasons. Chaque capteur en plus c'est une source de désaccord à arbitrer, pas une source d'info supplémentaire. Sensor fusion artisanale = dette technique permanente. Problème numéro deux, la bitter lesson de Rich Sutton : scaler le compute sur une seule modalité bat systématiquement les architectures bricolées à la main. Tesla a dropé le radar, puis les ultrasons, est passé full end-to-end vision. Leur courbe sur les edge cases s'est accélérée APRÈS, pas avant. Waymo fait l'inverse et reste stuck en ops géofencée. Problème numéro trois, le plus fondamental : le LIDAR voit la géométrie, pas la sémantique. Il sait qu'il y a un truc, pas ce que c'est ni ce que ça va faire. Les derniers 9 de fiabilité sont des problèmes de cognition, pas de perception brute. Un capteur de plus résout rien, il ajoute du bruit. Sébastien Loeb balance une 208 T16 à 180 dans un chemin boueux corse sous la pluie avec zéro LIDAR. Deux yeux, un cerveau. L'évolution a donné des yeux aux prédateurs pendant 500 millions d'années, pas des lasers. Il y a une raison. Le LIDAR c'est l'équivalent du marxisme appliqué à l'économie. Une solution planifiée, centralisée, qui prétend modéliser explicitement ce qui doit émerger d'un système distribué et adaptatif. Tu remplaces l'intelligence par de la mesure, la compréhension par de la donnée, l'émergence par le contrôle. Ça rassure les ingénieurs qui veulent tout spécifier en amont, exactement comme la planif rassurait les économistes soviétiques. Et ça échoue pour les mêmes raisons : la réalité est trop riche pour être capturée par un capteur, comme elle est trop riche pour être capturée par un plan quinquennal. La vraie intelligence, celle de Hayek comme celle de Tesla, c'est de faire confiance à un système qui apprend de l'expérience plutôt que de tout pré-encoder. L'élégance d'une solution c'est son rapport signal sur complexité. Le LIDAR explose le dénominateur. Défendre le LIDAR en 2026 c'est préférer empiler des hacks plutôt que résoudre le vrai problème. C'est de la feignasserie intellectuelle maquillée en rigueur d'ingénieur. Les mêmes gens qui défendaient les systèmes experts en 2012 contre le deep learning. Ils finiront pareil. Never bet against end-to-end. Never bet against la simplicité. Never bet against Elon.

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Franz Liebmann
Franz Liebmann@lipo1·
🚗 800,361 km. Zero defects. Passed inspection again. In a Tesla Model S. You know… the “toy” that was supposed to die after a few years. 😉 No engine rebuild. No oil changes. No emissions drama. Just… driving. Meanwhile, the internet keeps repeating: ❌ “Batteries die quickly” ❌ “EVs don’t last” ❌ “Not real-world proven” Funny. My car didn’t get the memo. Maybe the real issue isn’t the technology. Maybe it’s that some opinions are just… pre-installed. Curious: Does anyone know a car in Austria with more than 800,000 km on the clock? I’d genuinely like to see it. More details here: 👉 sonice.at The future isn’t coming. It’s already parked in my garage. 🍿 #EV #Tesla #ElectricVehicles #MythBusting #Innovation
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Daniel Fernau retweetledi
Tesla Europe, Middle East & Africa
De toekomst van mobiliteit is aangebroken FSD Supervised has been approved in the Netherlands 🇳🇱 & will begin rolling out in the country shortly!  Trained on billions of kilometers of real-world driving data, it can drive you almost anywhere under your supervision – from residential roads to city streets & highways No other vehicle can do this.  We're excited to bring FSD Supervised to more European countries soon
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Ashlee Vance
Ashlee Vance@ashleevance·
Here, in all its glory, is the exclusive first look at the massive @Tesla Semi factory. Our @corememory crew went to Nevada to see the line come to life, as it gets ready to pump out thousands of all-electric trucks. We saw the new cab and went on a drive too. Wunderbar!
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NASA
NASA@NASA·
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IGW
IGW@interstellargw·
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Atlas Press
Atlas Press@realAtlasPress·
Roger Scruton, the ancestor duty
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